Finding the Fourth Proportional to 397,274.80, 595,912.20 and 353,729.20
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Solution
The fourth proportional to 397,274.80, 595,912.20 and 353,729.20 is: 530,593.80
Step by Step Solution
- Step 1: Write the proportion equation
397,274.80 : 595,912.20 = 353,729.20 : x - Step 2: Convert to fraction form
397,274.80/595,912.20 = 353,729.20/x - Step 3: Cross multiply
397,274.80x = 595,912.20 × 353,729.20 - Step 4: Simplify right side
397,274.80x = 210,791,545,776.24 - Step 5: Solve for x
x = 210,791,545,776.24/397,274.80 - Step 6: Final answer
x = 530,593.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.